#include <openssl/bn.h>
#include <openssl/obj_mac.h>
+#include "internal/cryptlib.h"
#include "prov/der_rsa.h"
+#include "prov/der_digests.h"
/* Well known OIDs precompiled */
{-
- $OUT = oids_to_c::process_leaves('providers/common/der/RSA.asn1',
+ $OUT = oids_to_c::process_leaves('providers/common/der/NIST.asn1',
+ 'providers/common/der/DIGESTS.asn1',
+ 'providers/common/der/RSA.asn1',
{ dir => $config{sourcedir},
filter => \&oids_to_c::filter_to_C });
-}
+/* More complex pre-compiled sequences. TODO(3.0) refactor? */
+/*-
+ * From https://tools.ietf.org/html/rfc8017#appendix-A.2.1
+ *
+ * OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= {
+ * { OID id-sha1 PARAMETERS NULL }|
+ * { OID id-sha224 PARAMETERS NULL }|
+ * { OID id-sha256 PARAMETERS NULL }|
+ * { OID id-sha384 PARAMETERS NULL }|
+ * { OID id-sha512 PARAMETERS NULL }|
+ * { OID id-sha512-224 PARAMETERS NULL }|
+ * { OID id-sha512-256 PARAMETERS NULL },
+ * ... -- Allows for future expansion --
+ * }
+ */
+#define DER_V_NULL DER_P_NULL, 0
+#define DER_SZ_NULL 2
+
+/*
+ * The names for the hash function AlgorithmIdentifiers are borrowed and
+ * expanded from https://tools.ietf.org/html/rfc4055#section-2.1
+ *
+ * sha1Identifier AlgorithmIdentifier ::= { id-sha1, NULL }
+ * sha224Identifier AlgorithmIdentifier ::= { id-sha224, NULL }
+ * sha256Identifier AlgorithmIdentifier ::= { id-sha256, NULL }
+ * sha384Identifier AlgorithmIdentifier ::= { id-sha384, NULL }
+ * sha512Identifier AlgorithmIdentifier ::= { id-sha512, NULL }
+ */
+#if 0 /* Currently unused */
+#define DER_AID_V_sha1Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha1 + DER_SZ_NULL, \
+ DER_OID_V_id_sha1, \
+ DER_V_NULL
+static const unsigned char der_aid_sha1Identifier[] = {
+ DER_AID_V_sha1Identifier
+};
+#define DER_AID_SZ_sha1Identifier sizeof(der_aid_sha1Identifier)
+#endif
+
+#define DER_AID_V_sha224Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha224 + DER_SZ_NULL, \
+ DER_OID_V_id_sha224, \
+ DER_V_NULL
+static const unsigned char der_aid_sha224Identifier[] = {
+ DER_AID_V_sha224Identifier
+};
+#define DER_AID_SZ_sha224Identifier sizeof(der_aid_sha224Identifier)
+
+#define DER_AID_V_sha256Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha256 + DER_SZ_NULL, \
+ DER_OID_V_id_sha256, \
+ DER_V_NULL
+static const unsigned char der_aid_sha256Identifier[] = {
+ DER_AID_V_sha256Identifier
+};
+#define DER_AID_SZ_sha256Identifier sizeof(der_aid_sha256Identifier)
+
+#define DER_AID_V_sha384Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha384 + DER_SZ_NULL, \
+ DER_OID_V_id_sha384, \
+ DER_V_NULL
+static const unsigned char der_aid_sha384Identifier[] = {
+ DER_AID_V_sha384Identifier
+};
+#define DER_AID_SZ_sha384Identifier sizeof(der_aid_sha384Identifier)
+
+#define DER_AID_V_sha512Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha512 + DER_SZ_NULL, \
+ DER_OID_V_id_sha512, \
+ DER_V_NULL
+static const unsigned char der_aid_sha512Identifier[] = {
+ DER_AID_V_sha512Identifier
+};
+#define DER_AID_SZ_sha512Identifier sizeof(der_aid_sha512Identifier)
+
+#define DER_AID_V_sha512_224Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha512_224 + DER_SZ_NULL, \
+ DER_OID_V_id_sha512_224, \
+ DER_V_NULL
+static const unsigned char der_aid_sha512_224Identifier[] = {
+ DER_AID_V_sha512_224Identifier
+};
+#define DER_AID_SZ_sha512_224Identifier sizeof(der_aid_sha512_224Identifier)
+
+#define DER_AID_V_sha512_256Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_sha512_256 + DER_SZ_NULL, \
+ DER_OID_V_id_sha512_256, \
+ DER_V_NULL
+static const unsigned char der_aid_sha512_256Identifier[] = {
+ DER_AID_V_sha512_256Identifier
+};
+#define DER_AID_SZ_sha512_256Identifier sizeof(der_aid_sha512_256Identifier)
+
+/*-
+ * From https://tools.ietf.org/html/rfc8017#appendix-A.2.1
+ *
+ * HashAlgorithm ::= AlgorithmIdentifier {
+ * {OAEP-PSSDigestAlgorithms}
+ * }
+ *
+ * ...
+ *
+ * PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= {
+ * { OID id-mgf1 PARAMETERS HashAlgorithm },
+ * ... -- Allows for future expansion --
+ * }
+ */
+
+/*
+ * The names for the MGF1 AlgorithmIdentifiers are borrowed and expanded
+ * from https://tools.ietf.org/html/rfc4055#section-2.1
+ *
+ * mgf1SHA1Identifier AlgorithmIdentifier ::=
+ * { id-mgf1, sha1Identifier }
+ * mgf1SHA224Identifier AlgorithmIdentifier ::=
+ * { id-mgf1, sha224Identifier }
+ * mgf1SHA256Identifier AlgorithmIdentifier ::=
+ * { id-mgf1, sha256Identifier }
+ * mgf1SHA384Identifier AlgorithmIdentifier ::=
+ * { id-mgf1, sha384Identifier }
+ * mgf1SHA512Identifier AlgorithmIdentifier ::=
+ * { id-mgf1, sha512Identifier }
+ */
+#if 0 /* Currently unused */
+#define DER_AID_V_mgf1SHA1Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha1Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha1Identifier
+static const unsigned char der_aid_mgf1SHA1Identifier[] = {
+ DER_AID_V_mgf1SHA1Identifier
+};
+#define DER_AID_SZ_mgf1SHA1Identifier sizeof(der_aid_mgf1SHA1Identifier)
+#endif
+
+#define DER_AID_V_mgf1SHA224Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha224Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha224Identifier
+static const unsigned char der_aid_mgf1SHA224Identifier[] = {
+ DER_AID_V_mgf1SHA224Identifier
+};
+#define DER_AID_SZ_mgf1SHA224Identifier sizeof(der_aid_mgf1SHA224Identifier)
+
+#define DER_AID_V_mgf1SHA256Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha256Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha256Identifier
+static const unsigned char der_aid_mgf1SHA256Identifier[] = {
+ DER_AID_V_mgf1SHA256Identifier
+};
+#define DER_AID_SZ_mgf1SHA256Identifier sizeof(der_aid_mgf1SHA256Identifier)
+
+#define DER_AID_V_mgf1SHA384Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha384Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha384Identifier
+static const unsigned char der_aid_mgf1SHA384Identifier[] = {
+ DER_AID_V_mgf1SHA384Identifier
+};
+#define DER_AID_SZ_mgf1SHA384Identifier sizeof(der_aid_mgf1SHA384Identifier)
+
+#define DER_AID_V_mgf1SHA512Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha512Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha512Identifier
+static const unsigned char der_aid_mgf1SHA512Identifier[] = {
+ DER_AID_V_mgf1SHA512Identifier
+};
+#define DER_AID_SZ_mgf1SHA512Identifier sizeof(der_aid_mgf1SHA512Identifier)
+
+#define DER_AID_V_mgf1SHA512_224Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha512_224Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha512_224Identifier
+static const unsigned char der_aid_mgf1SHA512_224Identifier[] = {
+ DER_AID_V_mgf1SHA512_224Identifier
+};
+#define DER_AID_SZ_mgf1SHA512_224Identifier sizeof(der_aid_mgf1SHA512_224Identifier)
+
+#define DER_AID_V_mgf1SHA512_256Identifier \
+ DER_P_SEQUENCE|DER_F_CONSTRUCTED, \
+ DER_OID_SZ_id_mgf1 + DER_AID_SZ_sha512_256Identifier, \
+ DER_OID_V_id_mgf1, \
+ DER_AID_V_sha512_256Identifier
+static const unsigned char der_aid_mgf1SHA512_256Identifier[] = {
+ DER_AID_V_mgf1SHA512_256Identifier
+};
+#define DER_AID_SZ_mgf1SHA512_256Identifier sizeof(der_aid_mgf1SHA512_256Identifier)
+
+
+#define MGF1_SHA_CASE(bits, var) \
+ case NID_sha##bits: \
+ var = der_aid_mgf1SHA##bits##Identifier; \
+ var##_sz = sizeof(der_aid_mgf1SHA##bits##Identifier); \
+ break;
+
+/*-
+ * The name is borrowed from https://tools.ietf.org/html/rfc8017#appendix-A.2.1
+ *
+ * MaskGenAlgorithm ::= AlgorithmIdentifier { {PKCS1MGFAlgorithms} }
+ */
+static int DER_w_MaskGenAlgorithm(WPACKET *pkt, int tag,
+ const RSA_PSS_PARAMS_30 *pss)
+{
+ if (pss != NULL && rsa_pss_params_30_maskgenalg(pss) == NID_mgf1) {
+ int maskgenhashalg_nid = rsa_pss_params_30_maskgenhashalg(pss);
+ const unsigned char *maskgenalg = NULL;
+ size_t maskgenalg_sz = 0;
+
+ switch (maskgenhashalg_nid) {
+ case NID_sha1:
+ break;
+ MGF1_SHA_CASE(224, maskgenalg);
+ MGF1_SHA_CASE(256, maskgenalg);
+ MGF1_SHA_CASE(384, maskgenalg);
+ MGF1_SHA_CASE(512, maskgenalg);
+ MGF1_SHA_CASE(512_224, maskgenalg);
+ MGF1_SHA_CASE(512_256, maskgenalg);
+ default:
+ return 0;
+ }
+
+ /* If there is none (or it was the default), we write nothing */
+ if (maskgenalg == NULL)
+ return 1;
+
+ return DER_w_precompiled(pkt, tag, maskgenalg, maskgenalg_sz);
+ }
+ return 0;
+}
+
+#define OAEP_PSS_MD_CASE(name, var) \
+ case NID_##name: \
+ var = der_oid_id_##name; \
+ var##_sz = sizeof(der_oid_id_##name); \
+ break;
+
+int DER_w_RSASSA_PSS_params(WPACKET *pkt, int tag, const RSA_PSS_PARAMS_30 *pss)
+{
+ int hashalg_nid, default_hashalg_nid;
+ int saltlen, default_saltlen;
+ int trailerfield, default_trailerfield;
+ const unsigned char *hashalg = NULL;
+ size_t hashalg_sz = 0;
+
+ /*
+ * For an unrestricted key, this function should not have been called;
+ * the caller must be in control, because unrestricted keys are permitted
+ * in some situations (when encoding the public key in a SubjectKeyInfo,
+ * for example) while not in others, and this function doesn't know the
+ * intent. Therefore, we assert that here, the PSS parameters must show
+ * that the key is restricted.
+ */
+ if (!ossl_assert(pss != NULL && !rsa_pss_params_30_is_unrestricted(pss)))
+ return 0;
+
+ hashalg_nid = rsa_pss_params_30_hashalg(pss);
+ saltlen = rsa_pss_params_30_saltlen(pss);
+ trailerfield = rsa_pss_params_30_trailerfield(pss);
+
+ /* Getting default values */
+ default_hashalg_nid = rsa_pss_params_30_hashalg(NULL);
+ default_saltlen = rsa_pss_params_30_saltlen(NULL);
+ default_trailerfield = rsa_pss_params_30_trailerfield(NULL);
+
+ /*
+ * From https://tools.ietf.org/html/rfc8017#appendix-A.2.1:
+ *
+ * OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= {
+ * { OID id-sha1 PARAMETERS NULL }|
+ * { OID id-sha224 PARAMETERS NULL }|
+ * { OID id-sha256 PARAMETERS NULL }|
+ * { OID id-sha384 PARAMETERS NULL }|
+ * { OID id-sha512 PARAMETERS NULL }|
+ * { OID id-sha512-224 PARAMETERS NULL }|
+ * { OID id-sha512-256 PARAMETERS NULL },
+ * ... -- Allows for future expansion --
+ * }
+ */
+ switch (hashalg_nid) {
+ OAEP_PSS_MD_CASE(sha1, hashalg);
+ OAEP_PSS_MD_CASE(sha224, hashalg);
+ OAEP_PSS_MD_CASE(sha256, hashalg);
+ OAEP_PSS_MD_CASE(sha384, hashalg);
+ OAEP_PSS_MD_CASE(sha512, hashalg);
+ OAEP_PSS_MD_CASE(sha512_224, hashalg);
+ OAEP_PSS_MD_CASE(sha512_256, hashalg);
+ default:
+ return 0;
+ }
+
+ return DER_w_begin_sequence(pkt, tag)
+ && (trailerfield == default_trailerfield
+ || DER_w_ulong(pkt, 3, trailerfield))
+ && (saltlen == default_saltlen || DER_w_ulong(pkt, 2, saltlen))
+ && DER_w_MaskGenAlgorithm(pkt, 1, pss)
+ && (hashalg_nid == default_hashalg_nid
+ || DER_w_precompiled(pkt, 0, hashalg, hashalg_sz))
+ && DER_w_end_sequence(pkt, tag);
+}
+
+/* Aliases so we can have a uniform RSA_CASE */
+#define der_oid_rsassaPss der_oid_id_RSASSA_PSS
+
+#define RSA_CASE(name, var) \
+ var##_nid = NID_##name; \
+ var##_oid = der_oid_##name; \
+ var##_oid_sz = sizeof(der_oid_##name); \
+ break;
+
int DER_w_algorithmIdentifier_RSA(WPACKET *pkt, int tag, RSA *rsa)
{
+ int rsa_nid = NID_undef;
+ const unsigned char *rsa_oid = NULL;
+ size_t rsa_oid_sz = 0;
+ RSA_PSS_PARAMS_30 *pss_params = rsa_get0_pss_params_30(rsa);
+
+ switch (RSA_test_flags(rsa, RSA_FLAG_TYPE_MASK)) {
+ case RSA_FLAG_TYPE_RSA:
+ RSA_CASE(rsaEncryption, rsa);
+ case RSA_FLAG_TYPE_RSASSAPSS:
+ RSA_CASE(rsassaPss, rsa);
+ }
+
+ if (rsa_oid == NULL)
+ return 0;
+
return DER_w_begin_sequence(pkt, tag)
- /* No parameters (yet?) */
- && DER_w_precompiled(pkt, -1, der_oid_rsaEncryption,
- sizeof(der_oid_rsaEncryption))
+ && (rsa_nid != NID_rsassaPss
+ || rsa_pss_params_30_is_unrestricted(pss_params)
+ || DER_w_RSASSA_PSS_params(pkt, -1, pss_params))
+ && DER_w_precompiled(pkt, -1, rsa_oid, rsa_oid_sz)
&& DER_w_end_sequence(pkt, tag);
}
-/* Aliases so we can have a uniform MD_CASE */
+/* Aliases so we can have a uniform MD_with_RSA_CASE */
#define der_oid_sha3_224WithRSAEncryption \
der_oid_id_rsassa_pkcs1_v1_5_with_sha3_224
#define der_oid_sha3_256WithRSAEncryption \
#define der_oid_sha3_512WithRSAEncryption \
der_oid_id_rsassa_pkcs1_v1_5_with_sha3_512
-#define MD_CASE(name) \
+#define MD_with_RSA_CASE(name, var) \
case NID_##name: \
- precompiled = der_oid_##name##WithRSAEncryption; \
- precompiled_sz = sizeof(der_oid_##name##WithRSAEncryption); \
+ var = der_oid_##name##WithRSAEncryption; \
+ var##_sz = sizeof(der_oid_##name##WithRSAEncryption); \
break;
int DER_w_algorithmIdentifier_RSA_with(WPACKET *pkt, int tag,
switch (mdnid) {
#ifndef FIPS_MODULE
- MD_CASE(md2);
- MD_CASE(md5);
- MD_CASE(md4);
- MD_CASE(ripemd160);
+ MD_with_RSA_CASE(md2, precompiled);
+ MD_with_RSA_CASE(md5, precompiled);
+ MD_with_RSA_CASE(md4, precompiled);
+ MD_with_RSA_CASE(ripemd160, precompiled);
/* TODO(3.0) Decide what to do about mdc2 and md5_sha1 */
#endif
- MD_CASE(sha1);
- MD_CASE(sha224);
- MD_CASE(sha256);
- MD_CASE(sha384);
- MD_CASE(sha512);
- MD_CASE(sha512_224);
- MD_CASE(sha512_256);
- MD_CASE(sha3_224);
- MD_CASE(sha3_256);
- MD_CASE(sha3_384);
- MD_CASE(sha3_512);
+ MD_with_RSA_CASE(sha1, precompiled);
+ MD_with_RSA_CASE(sha224, precompiled);
+ MD_with_RSA_CASE(sha256, precompiled);
+ MD_with_RSA_CASE(sha384, precompiled);
+ MD_with_RSA_CASE(sha512, precompiled);
+ MD_with_RSA_CASE(sha512_224, precompiled);
+ MD_with_RSA_CASE(sha512_256, precompiled);
+ MD_with_RSA_CASE(sha3_224, precompiled);
+ MD_with_RSA_CASE(sha3_256, precompiled);
+ MD_with_RSA_CASE(sha3_384, precompiled);
+ MD_with_RSA_CASE(sha3_512, precompiled);
default:
return 0;
}
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